// 会话类型
export interface Conversation {
    id: string;
    name: string;
    avatar: string;
    lastMessage: string;
    lastMessageTime: number;
    unreadCount: number;
}

// 消息类型
export interface Message {
    id: string;
    content: string;
    senderId: string;
    createdAt: number;
}

// 通知类型
export interface Notification {
    id: string;
    type: 'info' | 'success' | 'warning' | 'error';
    title: string;
    content: string;
    createdAt: number;
    read: boolean;
} 